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Finding the Fourth Proportional to 607,999.10, 912,085.05 and 187,231.10

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Solution

The fourth proportional to 607,999.10, 912,085.05 and 187,231.10 is: 280,873.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,999.10 : 912,085.05 = 187,231.10 : x
  2. Step 2: Convert to fraction form
    607,999.10/912,085.05 = 187,231.10/x
  3. Step 3: Cross multiply
    607,999.10x = 912,085.05 × 187,231.10
  4. Step 4: Simplify right side
    607,999.10x = 170,770,687,205.06
  5. Step 5: Solve for x
    x = 170,770,687,205.06/607,999.10
  6. Step 6: Final answer
    x = 280,873.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.